Rocking-chair attachment



(No Model.)

' G. KADE; ROCKING CHAIR ATTACHMENT.

, attaching-loop, whereby one end of the spring is secured .to a studfixed on one of the parts,

, connecting the rockers of base rocking-chairs ing of greater diameterthan thenarrow side coils of the large end of the spring together I viewshowing the attachment applied'to a l of the spring'and bracket.

ATENT CFFICE.

CHARLES KADE, OF CHICAGO, ILLINCIS.

ROCKING-QHAlRjATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 418,724, dated January7,1890. Application filed February 23, 1889. Serial No. 300,934. (Nomodel.)

To all whom it may concern.-

Be it known that I, CHARLES KADE, a citizen of the United States,-residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Rocking-ChairAttachments, of which the following is a specification. Y

My invention relates to attachments for yieldingly to the base, andcomprises improvementsin both the springs and brackets of suchattachments. r

My improvements relate particularly to such a construction as willfacilitate the assembling of the parts and their attachment to thechair, and to a construction wherein a conical spring is employed, andin which an is formed integrally with the spring itself. The spring inthis construction operates by extension of its coils, and the bracketwhich secures one of its ends is preferably-made with its flange of thesame taper as the spring itself, the small end" of the spring be inginserted through the bracket from its widest side, and the spring beingrestrained from separation by virtue of its base-coils be of thebracket. I also by preference solder, braze, or otherwise secure two ormore of the to afford a'firmer bearing, and provide the bracket with aretaining flange or lips to prevent the spring from working through thebracket in the direction from which it is inserted therein.

I11 the drawings, Figure 1 is a perspective rocker and base. Fig. 2 is aperspective view Fig. 3 is a similar View of the spring detached,showing the end coils of the spring soldered together. Fig. 4 is' abroken perspective view of one form of bracket having an integralinwardly-projecting flange on the interior of its. body to engage thespring and prevent its endwise movement in the bracket. Fig. 5 is aperspective view of the spring and bracket, the latter being providedin. this instance with lips which are adapted to be bent over the endcoil of the spring; and Fig. 6 is a plan view of a bracket havingintegral inwardlyprojecting retaining-lips.

In the drawings, A represents the base, and

B the rocker, of an ordinary platform rockingchair.

C is a conical spring having an integral attaching-loop c at its smallend, which is adapted to engage a suitable stud, as D, se-

cured to one of the parts of the chair. To the other part of the chairwill be secured a suitable bracket comprising the circular body E, whichis preferably tapered on its interior, as clearly shown in the drawings,particularly in Fig. 4, and attaching-flanges E. The taper -of the bodyE will conform to the taper of spring after it is put in place, as shownin said figure. The spring may have two or more of its end coilssoldered or brazed together, as shown at c, Fig. 3.

In use the stud D and the bracket -are secured upon the respective partsof the chair. The small end of the spring is then thrust through thebracket until its large end seats itself within the body E. In case theform of bracket shown in Fig. 4 or 6 be used, it will be necessary totwist the spring. as its large end comes in contact with the flanges orlips e, so as to force the latter between the coils. These'fianges orlips need not, however, be arranged with a pitch to correspond with thepitch of the coils, but may lie in a horizontal plane, as shown in thedrawings. If the form of bracket shown in Fig. 5 be used, the springwill be forced into its seat in the bracket, and the lips 6 will be bentover the last coil, as shown in Fig. 5. In either case the sole functionof these lips or flanges is to prevent the spring frornforcin g its Wayout of the bracket IOC in the direction from which it is inserted. I

This attachment combines many desirable features. It is strong, simplein its parts and operation, and cheap in construction. The conical formof spring is the best yet devised for this sort of attachment, and Ihave shown herein adequate means for connecting it, the integral loopbeing a simple yet eliicient method of securing one end, while thebracket shown for securing its other end is in many ways superior to theforms in common use.

I claim- 1. In attachments for base rocking-chairs, &c., thecombination, with a conical spring provided at its small end with anintegral attaching-loop adapted to engage a bracketstud to be secured toone of the parts of the chair, of a bracket havingacircular body portiontapered on its interior to conform to the taper of the spring, andadapted to retain the large end of the spring thereby and to be securedto the other part of the chair, substantially as described.

2. In an attachment for base rocking-chairs,

850., the combination, with a conical spring and a bracket device orstud adapted to connect the small end of said spring to one of the partsof the chairor like article, and a bracket having a body portion taperedon its interior to provide a seat for the large end of the spring, andhaving retaining-flanges adapted to engage the spring to prevent itsWithdrawal, substantially as described.

3. In an attachment for base rocking-chairs, &c., the combination, witha conical spring and means for securing the small end of the spring toone of the parts of the chair or like article, of a bracket having abody portion tapered on its interior to conform to the taper of thespring, and the latter having two or more of its end coils brazed orsoldered together, substantially as and for the purpose described.

CHARLES KADE. Witnesses:

O. (J. LINTHICUM, T. D. BUTLER.

